Query takes ages in Oracle 10G

From: Isabel Bedoya <isabel_bga@xxxxxxxx>

To: oracle-l@xxxxxxxxxxxxx

Date: Thu, 21 Sep 2006 17:13:03 -0400 (EDT)

Hi all,
I am trying to run a query with sub-queries in Oracle 10G Release 2 and it is
taking ages, I divided the query into parts and I have no problems running the
first and third subqueries (together and each one separated) but when I try to
run the second subquery along with the other two or just itself, it takes ages
(I generated a trace and returned a wait of 22 minutes executing the query
giving no results at all).
The table has 22567 records in it and runs PERFECTLY in Oracle 9i, we didn't
change anything while migrating to 10G. It seems there is a problem with the
date being invoked in the second subquery. Do you have any clue about what can
be happening with this query?. Thanks
SELECT *
FROM TITULO
WHERE TITULO_ESCENA_CODIGO___ = 'REAL' AND
TITULO_PORTAF_CODIGO___ = 'OBL' AND
TITULO_TIPTIT_CODIGO___ = 'TES_TF' AND
(TITULO_INDTITGAR IS NULL OR TITULO_INDTITGAR = 4) AND
TITULO_FUTURO___ IS NULL AND
TITULO_ESTADO___ = 2 AND
TITULO_CLASIFICA <> 3 AND
TITULO_NUMERO___ NOT IN (SELECT OPETIT_TITULO_NUMERO___
FROM OPETIT, OPERAC
WHERE OPETIT_ESCENA_CODIGO____OPE =
'REAL' AND
OPETIT_PORTAF_CODIGO____OPE = 'OBL'
AND
OPETIT_OPERAC_NUMERO___ =
OPERAC_NUMERO___ AND
OPERAC_ESCENA_CODIGO___ = 'REAL' AND
OPERAC_PORTAF_CODIGO___ = 'OBL' AND
OPERAC_TIPOPE_CODIGO___ = 2 AND
OPERAC_ESTADO___ IN (2, 3)) AND
TITULO_NUMERO___ NOT IN (SELECT VENCIM_TITULO_NUMERO___
FROM VENCIM
WHERE VENCIM_ESCENA_CODIGO___ = 'REAL' AND
VENCIM_PORTAF_CODIGO___ = 'OBL' AND
VENCIM_ESTADO___ = 2
AND
VENCIM_FECCOBORI <= '21/09/2006') AND
TITULO_NUMERO___ NOT IN (SELECT T_TITU.TITULO_NUMERO___
FROM T_TITU, T_OPTI
WHERE T_TITU.TITULO_ESCENA_CODIGO___ = 'REAL'
AND
T_TITU.TITULO_PORTAF_CODIGO___ = 'OBL' AND
T_TITU.TITULO_NUMERO___ =
OPETIT_TITULO_NUMERO___ AND
OPETIT_ESCENA_CODIGO____OPE = 'REAL' AND
OPETIT_PORTAF_CODIGO____OPE = 'OBL'
AND
OPETIT_OPERAC_NUMERO___ = 58)
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